49 found
Sort by:
  1. Stuart Hameroff, Ricerche.
    Come leggere un'antica pergamena senza sro- tolarla? Semplice, basta illuminarla con i raggi X di un sincrotrone (foto). L'analisi al sincro- trone ha svelato i segreti di alcuni manoscritti sigillati del Mar Morto, risalenti al XII secolo, così fragili da non poterli aprire senza rischiare di danneggiarli. Per decifrare un prezioso roto- lo di sottilissima pelle animale, lo strumento lo..
    No categories
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  2. Stuart Hameroff, Anesthesia, Consciousness and Hydrophobic Pockets a Unitary Quantum Hypothesis of Anesthetic Action.
    Anesthetic gas molecules are recognized to act by van der Waals (London dispersion) forces in hydrophobic pockets of select brain proteins to ablate consciousness. Enigmatic features of consciousness have defied conventional neurophysiological exp lanations and prompted suggestions for supplemental occurrence of macroscopic quantum coherent states and quantum computation in the brain. Are these feasible? During conscious (non-anesthetic) conditions, endogenous Van der Waals London dispersion forces occur among non-polar amino acid groups in hydrophobic pockets of neural proteins and help regulate their (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  3. Stuart Hameroff, Consciousness, Microtubules and the Quantum World.
    Hameroff: I became interested in understanding consciousness as an undergraduate at the University of Pittsburgh in the late 60's. In my third year of medical school at Hahnemann in Philadelphia I did a research elective in professor Ben Kahn's hematology-oncology lab. They were studying various types of malignant blood cells, and I became interested in mitosis-looking under the microscope at normal and abnormal cell division. I became fascinated by centrioles and mitotic spindles pulling apart the chromosomes, doing this little dance, (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  4. Stuart Hameroff, Is DNA a Quantum Computer?
    A recent paper by Rieper, Anders and Vedral (arxiv.org/abs/1006.4053: The Relevance Of Continuous Variable Entanglement In DNA) suggests that quantum entanglement among base pairs in the DNA double helix stabilizes the molecule. A summary of their paper is reported in MIT Technology Review (http://www.technologyreview.com/blog/arxiv/25375/) is below..
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  5. Stuart Hameroff, Journal of Biological Physics - Open Access.
    The 'Conscious Pilot' is a new model of the neural correlate of consciousness (NCC) consistent with the Orch OR model. The basic idea is that spatiotemporal envelopes of dendritic gamma synchrony move through the brain's neuronal networks. The movement is sideways to neurocomputational flow, occurring via dendritic dendritic gap junction electrical synapses. A conscious pilot moving around an airplane while it flies on auto pilot is used as a metaphor for dendritic synchrony moving through the brain's neurocomputational networks, conveying conscious (...)
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  6. Stuart Hameroff, Naughty Quantum Robot!
    Stuart Hameroff, M.D., is a doctor of medicine, a professor of anesthesiology and psychology, as well as associate director of the Center for Consciousness Studies at University of Arizona. Through a collaboration with mathematical physicist, Prof Sir Roger Penrose, Prof Hameroff is leading the assault on mainstream thinking about the human mind and how it is that we come to be. Forget space exploration. Forget biotechnology. Forget nanobots. Forget sea monkeys. The final frontier of science is reading this article right (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  7. Stuart Hameroff, Overview: Could Life And Consciousness Be Related To The Fundamental Quantum Nature Of The Universe?
    Consciousness defines our existence and reality. But how does the brain generate thoughts and feelings? Most explanations portray the brain as a computer, with nerve cells ("neurons") and their synaptic connections acting as simple switches, or "bits" which interact in complex ways. In this view consciousness is said to "emerge" as a novel property of complex interactions among neurons, as hurricanes and candle flames emerge from complex interactions among gas and dust molecules. However this approach fails to explain why we (...)
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  8. Stuart Hameroff, Pnas).
    As an explanation for order and long range correlations in living systems, Fröhlich (1968; 1970; 1975) proposed certain biomolecules pumped by metabolic processes could exhibit coherent phonon dynamics, perhaps even macroscopic quantum coherence akin to Bose Einstein condensation or lasers. The biomolecular requirements, according to Fröhlich, were: 1) a geometric array or lattice of dipoles constrained in a common voltage gradient, and 2) ample, non coherent biochemical energy. Eligible proposed candidates included membrane proteins, nucleic acids and cytoskeletal microtubules.
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  9. Stuart Hameroff, Search for Quantum and Classical Modes of Information Processing in Microtubules: Implications for “the Living State”.
    Dynamical activities within living eukaryotic cells are organized by microtubules, main structural components of the cytoskeleton and cylindrical polymers of the protein tubulin. Evidence and theoretical models suggest that states of tubulin may play the role of “bits” in classical microtubule computational automata. The advent of quantum information devices, key roles played by quantum processes in protein dynamics, and coherent ordering in the cell cytoplasm further suggest that microtubules may function as quantum computational devices, and that mesoscopic and macroscopic quantum (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  10. Stuart Hameroff, The Quantum Mind Of.
    Today we’re talking with Stuart Hameroff, Professor Emeritus at the Departments of Anesthesiology and Psychology, and Director of the Center for Consciousness Studies, at the University of Arizona. Dr Hameroff is best-known for his research on 'quantum consciousness', an alternative model to the accepted view of how consciousness arises. With Sir Roger Penrose, Dr Hameroff has proposed that consciousness arises at the quantum level within structures inside neurons, known as microtubules.
    Direct download  
     
    My bibliography  
     
    Export citation  
  11. Stuart R. Hameroff, Time, Consciousness, and Quantum Events in Fundamental Space-Time Geometry.
    1. Introduction: The problems of time and consciousness What is time? St. Augustine remarked that when no one asked him, he knew what time was; however when someone asked him, he did not. Is time a process which flows? Is time a dimension in which processes occur? Does time actually exist? The notion that time is a process which "flows" directionally may be illusory (the "myth of passage") for if time did flow it would do so in some medium or (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  12. Stuart Hameroff (2014). Quantum Walks in Brain Microtubules—A Biomolecular Basis for Quantum Cognition? Topics in Cognitive Science 6 (1):91-97.
    Cognitive decisions are best described by quantum mathematics. Do quantum information devices operate in the brain? What would they look like? Fuss and Navarro () describe quantum lattice registers in which quantum superpositioned pathways interact (compute/integrate) as ‘quantum walks’ akin to Feynman's path integral in a lattice (e.g. the ‘Feynman quantum chessboard’). Simultaneous alternate pathways eventually reduce (collapse), selecting one particular pathway in a cognitive decision, or choice. This paper describes how quantum walks in a Feynman chessboard are conceptually identical (...)
    Direct download (5 more)  
     
    My bibliography  
     
    Export citation  
  13. Stuart R. Hameroff (2013). Quantum Mathematical Cognition Requires Quantum Brain Biology: The “Orch OR” Theory. Behavioral and Brain Sciences 36 (3):287-290.
    The theory suggests that quantum computations in brain neuronal dendritic-somatic microtubules regulate axonal firings to control conscious behavior. Within microtubule subunit proteins, collective dipoles in arrays of contiguous amino acid electron clouds enable suitable for topological dipole able to physically represent cognitive values, for example, those portrayed by Pothos & Busemeyer (P&B) as projections in abstract Hilbert space.
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  14. Ludovico Galleni, Miroslow Karaba & Stuart Hameroff (2011). Holistic Approach in Biology and Neuroscience, Finale Debate Proceedings. Pensamiento 67 (254):745-765.
    No categories
     
    My bibliography  
     
    Export citation  
  15. Jose Maria Gomez, Stuart Hameroff & Manuel Bejar (2011). The Quantum Mind Debate Proceedings. Pensamiento 67 (254):675-688.
    No categories
     
    My bibliography  
     
    Export citation  
  16. Stuart Hameroff (2011). The Quantum Mind. Pensamiento 67 (254):000-000.
    No categories
    Direct download  
     
    My bibliography  
     
    Export citation  
  17. Stuart Hameroff & Jonathan Powell (2009). The Conscious Connection: A Psycho-Physical Bridge Between Brain and Pan-Experiential Quantum Geometry. In David Skrbina (ed.), Mind That Abides: Panpsychism in the New Millennium. John Benjamins Pub.. 109--127.
    No categories
     
    My bibliography  
     
    Export citation  
  18. Stuart Hameroff (2007). The Good, the Bad and the Octopus. Journal of Consciousness Studies 14 (8):105-109.
    Conference Report on ASSC 11, Las Vegas 2007.
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  19. Stuart R. Hameroff (2007). The Brain Is Both Neurocomputer and Quantum Computer. Cognitive Science 31 (6):1035-1045.
    _Figure 1. Dendrites and cell bodies of schematic neurons connected by dendritic-dendritic gap junctions form a laterally connected input_ _layer (“dendritic web”) within a neurocomputational architecture. Dendritic web dynamics are temporally coupled to gamma synchrony_ _EEG, and correspond with integration phases of “integrate and fire” cycles. Axonal firings provide input to, and output from, integration_ _phases (only one input, and three output axons are shown). Cell bodies/soma contain nuclei shown as black circles; microtubule networks_ _pervade the cytoplasm. According to the (...)
    Direct download (5 more)  
     
    My bibliography  
     
    Export citation  
  20. Stuart R. Hameroff (2006). The Entwined Mysteries of Anesthesia and Consciousness. Anesthesiology 105 (2):400-412.
    feelings (brainstem, limbic system). The best scientific synchrony and consciousness.21,27 Anesthesiology, V 105, No 2, Aug 2006.
    Direct download (8 more)  
     
    My bibliography  
     
    Export citation  
  21. R. Gerard, W. Gibbs, A. Gierer, S. Greenfield, G. Groddeck, M. Guarini, V. Guillemin, S. Hameroff, N. R. Hanson & D. Hebb (2004). Josephson, B. 84. In Gordon G. Globus, Karl H. Pribram & Giuseppe Vitiello (eds.), Brain and Being. John Benjamins.
    No categories
    Direct download  
     
    My bibliography  
     
    Export citation  
  22. Stuart R. Hameroff, Consciousness, Whitehead and Quantum Computation in the Brain: Panprotopsychism Meets the Physics of Fundamental Spacetime Geometry.
    _dualism_ (consciousness lies outside knowable science), _emergence_ (consciousness arises as a novel property from complex computational dynamics in the brain), and some form of _panpsychism_, _pan-protopsychism, or pan-experientialism_ (essential features or precursors of consciousness are fundamental components of reality which are accessed by brain processes). In addition to 1) the problem of subjective experience, other related enigmatic features of consciousness persist, defying technological and philosophical inroads. These include 2) the “binding problem”—how disparate brain activities give rise to a unified sense (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  23. Stuart R. Hameroff & Nancy I. Woolf (2003). Quantum Consciousness. In Naoyuki Osaka (ed.), Neural Basis of Consciousness. John Benjamins. 49--167.
    No categories
    Direct download  
     
    My bibliography  
     
    Export citation  
  24. Stuart R. Hameroff & Nancy J. Woolf (2003). Quantum Consciousness: A Cortical Neural Circuit. In Naoyuki Osaka (ed.), Neural Basis of Consciousness. John Benjamins.
  25. Stuart R. Hameroff (2002). Quantum Computation in Brain Microtubules. Physical Review E 65 (6):1869--1896.
    Proposals for quantum computation rely on superposed states implementing multiple computations simultaneously, in parallel, according to quantum linear superposition (e.g., Benioff, 1982; Feynman, 1986; Deutsch, 1985, Deutsch and Josza, 1992). In principle, quantum computation is capable of specific applications beyond the reach of classical computing (e.g., Shor, 1994). A number of technological systems aimed at realizing these proposals have been suggested and are being evaluated as possible substrates for quantum computers (e.g. trapped ions, electron spins, quantum dots, nuclear spins, etc., (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  26. Stuart R. Hameroff (2001). Anesthesia: The "Other Side" of Consciousness. Consciousness and Cognition 10 (2):217-229.
  27. Stuart R. Hameroff (2001). Biological Feasibility of Quantum Approaches to Consciousness: The Penrose-Hameroff 'Orch Or' Model. In P. Loockvane (ed.), The Physical Nature of Consciousness. John Benjamins.
  28. Stuart R. Hameroff (2001). Consciousness, the Brain, and Space-Time Geometry. Annals of the New York Academy of Sciences 929:74-104.
    What is consciousness? Conventional approaches see it as an emergent property of complex interactions among individual neurons; however these approaches fail to address enigmatic features of consciousness. Accordingly, some philosophers have contended that "qualia," or an experiential medium from which consciousness is derived, exists as a fundamental component of reality. Whitehead, for example, described the universe as being composed of "occasions of experience." To examine this possibility scientifically, the very nature of physical reality must be re-examined. We must come to (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  29. Nancy J. Woolf & Stuart R. Hameroff (2001). A Quantum Approach to Visual Consciousness. Trends in Cognitive Sciences 5 (11):472-478.
  30. S. Hameroff, A. Kaszniak & David Chalmers (eds.) (1999). Toward a Science of Consciousness III: The Third Tucson Discussions and Debates. MIT Press.
    The first two conferences and books have become touchstones for the field. This volume presents a selection of invited papers from the third conference.
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  31. Stuart Hameroff (1999). A/Ttt the Timing of Conscious Experience—V Xxj. Introduction. In S. Hameroff, A. Kaszniak & David Chalmers (eds.), Toward a Science of Consciousness Iii: The Third Tucson Discussions and Debates. Mit Press. 3--341.
    No categories
     
    My bibliography  
     
    Export citation  
  32. Stuart Hameroff (1999). The Neuron Doctrine is an Insult to Neurons. Behavioral and Brain Sciences 22 (5):838-839.
    As presently implemented, the neuron doctrine (ND) portrays the brain's neurons and chemical synapses as fundamental components in a computer-like switching circuit, supporting a view of brain = mind = computer. However, close examination reveals individual neurons to be far more complex than simple switches, with enormous capacity for intracellular information processing (e.g., in the internal cytoskeleton). Other poorly appreciated factors (gap junctions, apparent randomness, dendritic-dendritic processing, possible quantum computation, the living state) also suggest that the ND grossly oversimplifies neuronal (...)
    Direct download (4 more)  
     
    My bibliography  
     
    Export citation  
  33. Stuart R. Hameroff (1999). A/T Evolution and Function of Consciousness—Va Introduction. In S. Hameroff, A. Kaszniak & David Chalmers (eds.), Toward a Science of Consciousness Iii: The Third Tucson Discussions and Debates. Mit Press. 3--245.
    No categories
     
    My bibliography  
     
    Export citation  
  34. Stuart R. Hameroff (1999). A/Tt Physical Reality and Consciousness—V Xx Introduction. In S. Hameroff, A. Kaszniak & David Chalmers (eds.), Toward a Science of Consciousness Iii: The Third Tucson Discussions and Debates. Mit Press. 3--309.
    No categories
     
    My bibliography  
     
    Export citation  
  35. S. Hameroff (1998). Reply to Spier and Thomas From Stuart Hameroff. Trends in Cognitive Sciences 2 (4):125-126.
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  36. Stuart R. Hameroff (1998). Did Consciousness Cause the Cambrian Evolutionary Explosion? In Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness II. MIT Press. 2--421.
    When and where did consciousness emerge in the course of evolution? Did it happen as recently as the past million years, for example concomitant with language or tool making in humans or primates? Or did consciousness arrive somewhat earlier, with the advent of mammalian neocortex 200 million years ago (Eccles, 1992)? At the other extreme, is primitive consciousness a property of even simple unicellular organisms of several billion years ago (e.g. as suggested by Margulis and Sagan, 1995)? Or did consciousness (...)
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  37. Stuart R. Hameroff (1998). "Funda-Mentality": Is the Conscious Mind Subtly Linked to a Basic Level of the Universe? Trends in Cognitive Sciences 2 (4):119-124.
    Age-old battle lines over the puzzling nature of mental experience are shaping a modern resurgence in the study of consciousness. On one side are the long-dominant "physicalists" who view consciousness as an emergent property of the brain's neural networks. On the alternative, rebellious side are those who see a necessary added ingredient: proto-conscious experience intrinsic to reality, perhaps understandable through modern physics (panpsychists, pan-experientialists, "funda-mentalists"). It is argued here that the physicalist premise alone is unable to solve completely the difficult (...)
    Direct download (9 more)  
     
    My bibliography  
     
    Export citation  
  38. Stuart R. Hameroff (1998). More Neural Than Thou (Reply to Churchland). In S. Ameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness Ii: The 1996 Tucson Discussions and Debates. Mit Press.
    In "Brainshy: Non-neural theories of conscious experience," (this volume) Patricia Churchland considers three "non-neural" approaches to the puzzle of consciousness: 1) Chalmers' fundamental information, 2) Searle's "intrinsic" property of brain, and 3) Penrose-Hameroff quantum phenomena in microtubules. In rejecting these ideas, Churchland flies the flag of "neuralism." She claims that conscious experience will be totally and completely explained by the dynamical complexity of properties at the level of neurons and neural networks. As far as consciousness goes, neural network firing patterns (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  39. Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.) (1998). Toward a Science of Consciousness II. MIT Press.
    This volume presents a selection of invited papers from the second conference, held in April 1996.
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  40. Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.) (1998). Toward a Science of Consciousness 1996. MIT Press.
    Quantum aspects of brain activity and the role of consciousness. Proceedings of the National ... Casti, JL 1996. Confronting science's logical limits. ...
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation  
  41. Stuart R. Hameroff & A. C. Scott (1998). A Sonoran Afternoon: A Dialogue on Quantum Mechanics and Consciousness. In Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness II. MIT Press.
    _Sonoran Desert, Stuart Hameroff and Alwyn Scott awoke from their_ _siestas to take margaritas in the shade of a ramada. On a nearby_ _table, a tape recorder had accidentally been left on and the following_ _is an unedited transcript of their conversation._.
    Direct download  
     
    My bibliography  
     
    Export citation  
  42. S. Hameroff (1996). Mari Jibu & Kunio Yasue, Quantum Brain Dynamics and Consciousness. Journal of Consciousness Studies 3:529-530.
     
    My bibliography  
     
    Export citation  
  43. Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.) (1996). Toward a Science of Consciousness: The First Tucson Discussions and Debates. MIT Press.
    Toward a Science of Consciousnessmarks the first major gathering -- a landmark event -- devoted entirely to unlocking the mysteries of consciousness.
    Direct download  
     
    My bibliography  
     
    Export citation  
  44. Stuart R. Hameroff & Roger Penrose (1996). Conscious Events as Orchestrated Space-Time Selections. Journal of Consciousness Studies 3 (1):36-53.
  45. Stuart R. Hameroff & Roger Penrose (1996). Orchestrated Reduction of Quantum Coherence in Brain Microtubules: A Model for Consciousness. In Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness. MIT Press.
  46. Roger Penrose & Stuart Hameroff (1996). Orchestrated Objective Reduction of Quantum Coherence in Brain Microtubules: The "Orch OR" Model for Consciousness. Mathematics and Computers in Simulation 40:453-480.
    Features of consciousness difficult to understand in terms of conventional neuroscience have evoked application of quantum theory, which describes the fundamental behavior of matter and energy. In this paper we propose that aspects of quantum theory (e.g. quantum coherence) and of a newly proposed physical phenomenon of quantum wave function "self-collapse"(objective reduction: OR -Penrose, 1994) are essential for consciousness, and occur in cytoskeletal microtubules and other structures within each of the brain's neurons. The particular characteristics of microtubules suitable for quantum (...)
    Direct download  
     
    My bibliography  
     
    Export citation  
  47. Roger Penrose & Stuart R. Hameroff (1995). What 'Gaps'? Reply to Grush and Churchland. Journal of Consciousness Studies 2 (2):98-111.
    Grush and Churchland (1995) attempt to address aspects of the proposal that we have been making concerning a possible physical mechanism underlying the phenomenon of consciousness. Unfortunately, they employ arguments that are highly misleading and, in some important respects, factually incorrect. Their article ‘Gaps in Penrose’s Toilings’ is addressed specifically at the writings of one of us (Penrose), but since the particular model they attack is one put forward by both of us (Hameroff and Penrose, 1995; 1996), it is appropriate (...)
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  48. Stuart R. Hameroff (1994). Quantum Coherence in Microtubules: A Neural Basis for Emergent Consciousness? Journal of Consciousness Studies 1 (1):91-118.
  49. Stuart Hameroff & Roger Penrose, Personal Publications Media Views Ulimate Computing.
    Features of consciousness difficult to understand in terms of conventional neuroscience have evoked application of quantum theory, which describes the fundamental behavior of matter and energy. In this paper we propose that aspects of quantum theory (e.g. quantum coherence) and of a newly proposed physical phenomenon of quantum wave function "self-collapse"(objective reduction: OR -Penrose, 1994) are essential for consciousness, and occur in cytoskeletal microtubules and other structures within each of the brain's neurons. The particular characteristics of microtubules suitable for quantum (...)
    No categories
    Translate to English
    | Direct download  
     
    My bibliography  
     
    Export citation